/*
 * Copyright 2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


export const DEFAULT_PAGE = 1
export const DEFAULT_LIMIT = 20

export class PageLimit {
  page: number = DEFAULT_PAGE
  limit: number = DEFAULT_LIMIT
}

export class PageList<T> {
  public page: number = DEFAULT_PAGE
  public limit: number = DEFAULT_LIMIT
  public size: number = 0
  private total_pages: number = 1
  private total_size: number = 0
  public elements: T[] = []

  public get totalPages() {
    return this.total_pages
  }

  public set totalPages(pages) {
    this.total_pages = pages
  }

  public get totalSize() {
    return this.total_size
  }

  public set totalSize(size) {
    this.total_size = size
  }

  public static empty<T>() {
    return new PageList<T>()
  }
}
